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-- $Id: simbus.vhd 805 2016-09-03 08:09:52Z mueller $ -- -- Copyright 2007-2016 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de> -- -- This program is free software; you may redistribute and/or modify it under -- the terms of the GNU General Public License as published by the Free -- Software Foundation, either version 2, or at your option any later version. -- -- This program is distributed in the hope that it will be useful, but -- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- for complete details. -- ------------------------------------------------------------------------------ -- Package Name: simbus -- Description: Global signals for support control in test benches -- -- Dependencies: - -- Tool versions: xst 8.2-14.7; viv 2016.2; ghdl 0.18-0.33 -- Revision History: -- Date Rev Version Comment -- 2016-09-02 805 2.1 rename SB_CLKSTOP > SB_SIMSTOP; init with 'L' -- 2011-12-23 444 2.0 remove global clock cycle signal SB_CLKCYCLE -- 2010-04-24 282 1.1 add SB_(VAL|ADDR|DATA) -- 2008-03-24 129 1.0.1 use 31 bits for SB_CLKCYCLE -- 2007-08-27 76 1.0 Initial version ------------------------------------------------------------------------------ library ieee; use ieee.std_logic_1164.all; use work.slvtypes.all; package simbus is signal SB_SIMSTOP : slbit := 'L'; -- global simulation stop signal SB_CNTL : slv16 := (others=>'L'); -- global signals tb -> uut signal SB_STAT : slv16 := (others=>'0'); -- global signals uut -> tb signal SB_VAL : slbit := 'L'; -- init bcast valid signal SB_ADDR : slv8 := (others=>'L'); -- init bcast address signal SB_DATA : slv16 := (others=>'L'); -- init bcast data -- Note: SB_SIMSTOP, SB_CNTL, SB_VAL, SB_ADDR, SB_DATA can have weak -- ('L','H') and strong ('0','1') drivers. Therefore always remove -- strenght before using, e.g. with to_x01() end package simbus;